wsm wg972-e4 - Page 99

ENGINE
WG972-E4, WSM
1-S8
Idle Gear Shaft to Idle Gear Bushing
• Idle Gear Shaft
• Idle Gear Bushing
Oil Clearance
O.D.
I.D.
0.020 to 0.088 mm
0.00079 to 0.0035 in.
19.967 to 19.980 mm
0.78611 to 0.78661 in.
20.000 to 20.051 mm
0.78741 to 0.78940 in.
0.10 mm
0.0039 in.
–
–
Piston Pin Bore I.D. 20.000 to 20.013 mm
0.78741 to 0.78791 in.
20.05 mm
0.7894 in.
Piston Pin to Small End Bushing
•Piston Pin
• Small End Bushing
Oil Clearance
O.D.
I.D.
0.012 to 0.038 mm
0.00048 to 0.0014 in.
20.002 to 20.013 mm
0.78748 to 0.78791 in.
20.025 to 20.040 mm
0.78839 to 0.78897 in.
0.10 mm
0.0039 in.
–
–
Piston Pin to Small End Bushing
(Spare Parts)
• Small End Bushing
Oil Clearance
I.D.
0.013 to 0.075 mm
0.00052 to 0.0029 in.
20.026 to 20.077 mm
0.78843 to 0.79043 in.
0.15 mm
0.0059 in.
–
Piston Ring
• Top Ring
• Second Ring
• Oil Ring (Upper and lower rail)
Gap
Gap
Gap
0.15 to 0.35 mm
0.0059 to 0.013 in.
0.30 to 0.45 mm
0.012 to 0.017 in.
0.20 to 0.70 mm
0.0079 to 0.027 in.
1.25 mm
0.0492 in.
1.25 mm
0.0492 in.
1.25 mm
0.0492 in.
Piston Ring to Piston Ring Groove
• Top Ring
• Second Ring
• Oil Ring
Clearance
Clearance
Clearance
0.080 to 0.12 mm
0.0032 to 0.0047 in.
0.065 to 0.10 mm
0.0026 to 0.0039 in.
0.060 to 0.15 mm
0.0024 to 0.0059 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
0.20 mm
0.0079 in.
Connecting Rod Alignment – 0.05 mm
0.002 in.
Crankshaft Side Clearance
Alignment
0.15 to 0.31 mm
0.0059 to 0.012 in.
–
0.50 mm
0.020 in.
0.02 mm
0.0008 in.
Item Factory Specification Allowable Limit
KiSC issued 07, 2015 A